Andrew Gumley is Professor of Psychological Therapy in the Institute of Health and Wellbeing, University of Glasgow. Alf Gillham is a retired Consultant Clinical Psychologist and an Honorary Senior Lecturer in the Institute of Health and Wellbeing, University of Glasgow. Kathy Taylor is a psychoanalyst working in private practice and a Consultant Clinical Psychologist working in homelessness and psychosis services in South London and Maudsley NHS Foundation Trust. Matthias Schwannauer is Professor of Clinical Psychology at the University of Edinburgh.